25840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:49

約数の個数: 40

約数和(自身を含む): 66960

約数和(自身を除く): 41120

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 34, 38, 40, 68, 76, 80, 85, 95, 136, 152, 170, 190, 272, 304, 323, 340, 380, 646, 680, 760, 1292, 1360, 1520, 1615, 2584, 3230, 5168, 6460, 12920, 25840]

約数ペア:

[(1, 25840), (2, 12920), (4, 6460), (5, 5168), (8, 3230), (10, 2584), (16, 1615), (17, 1520), (19, 1360), (20, 1292), (34, 760), (38, 680), (40, 646), (68, 380), (76, 340), (80, 323), (85, 304), (95, 272), (136, 190), (152, 170)]